Try to open bleed ports at lever and open pistons, sometimes they're overfilled. Check the rotor is perfectly straight, sometimes they aren't even when new. The spring does a lot of noise if badly installed.
You can also try to play with the reach, less reach = more travel and less rub
Try to open bleed ports at lever and open pistons, sometimes they're overfilled. Check the rotor is perfectly straight, sometimes they aren't even when new. The spring does a lot of noise if badly installed.
You can also try to play with the reach, less reach = more travel and less rub